@misc{brinkmann_separation_of_2011, 
author={Brinkmann, T.,Wind, J.,Wolff, T.},
title={Separation of CO2 from Biogas by Gas Permeation: a Comparison with Competing Technologies},
year={2011},
howpublished = {conference lecture: Amsterdam (NL); 23.-29.07.2011},
note = {Online available at: \url{} (DOI). Brinkmann, T.; Wind, J.; Wolff, T.: Separation of CO2 from Biogas by Gas Permeation: a Comparison with Competing Technologies. International Congress on Membranes and Membrane Processes, ICOM 2011. Amsterdam (NL), 2011.}}